<?php

use App\Campaigns\Platforms\GoogleRules;
use App\Campaigns\Platforms\LinkedInRules;
use App\Campaigns\Platforms\MetaRules;
use App\Campaigns\Platforms\TaboolaRules;
use App\Campaigns\Platforms\TikTokRules;

return [

    /*
    |--------------------------------------------------------------------------
    | Guardrails
    |--------------------------------------------------------------------------
    |
    | Checked inside the API client, below every platform adapter and below the
    | agent, so there is no path around them and a new platform inherits them by
    | existing. Neither a language model nor a user typing in the chat box can
    | get past these.
    |
    */

    /*
    |--------------------------------------------------------------------------
    | Platform Rules
    |--------------------------------------------------------------------------
    |
    | What each platform accepts: objectives, bid strategies, placements,
    | minimum spend, and which fields can still be edited once a campaign is
    | live. Adding a platform is a class here plus an adapter below; nothing in
    | the campaign builder needs to know the list.
    |
    */

    'rules' => [
        'meta' => MetaRules::class,
        'google' => GoogleRules::class,
        'tiktok' => TikTokRules::class,
        'taboola' => TaboolaRules::class,
        'linkedin' => LinkedInRules::class,
    ],

    'guardrails' => [

        /** Only these accounts may be reached at all. Reads included. */
        'allowed_ad_accounts' => array_values(array_filter(array_map(
            trim(...),
            explode(',', (string) env('PLATFORM_ALLOWED_AD_ACCOUNTS', '')),
        ))),

        /** Ceiling on a single campaign's daily budget, in whole currency units. */
        'max_daily_budget' => (float) env('PLATFORM_MAX_DAILY_BUDGET', 20),

        /** Most ads one publish may create. */
        'max_ads_per_publish' => (int) env('PLATFORM_MAX_ADS_PER_PUBLISH', 5),

        /**
         * Our share of the platform's hourly limit, so anything else using the
         * same token keeps its own headroom.
         */
        'max_calls_per_hour' => (int) env('PLATFORM_MAX_CALLS_PER_HOUR', 60),

        /**
         * How long to wait before the same campaign may be changed again on the
         * platform. Stops a disagreeing user and agent, or a retry loop, from
         * rewriting a live campaign repeatedly.
         */
        'change_cooldown_seconds' => (int) env('PLATFORM_CHANGE_COOLDOWN', 60),

        /** Most changes one campaign may have pushed to a platform in a day. */
        'max_changes_per_day' => (int) env('PLATFORM_MAX_CHANGES_PER_DAY', 20),

        /**
         * Halts everything that writes to a platform, without a deploy. Reads
         * keep working so the product can still explain itself.
         */
        'paused' => (bool) env('PLATFORM_PAUSE_ALL_WRITES', false),
    ],

    /*
    |--------------------------------------------------------------------------
    | Meta
    |--------------------------------------------------------------------------
    |
    | Two tokens, on purpose. The system user token is long lived and is what
    | Graph calls use. The MCP requires a user token carrying the
    | ads_mcp_management scope, which expires and has to be renewed.
    |
    */

    'meta' => [
        'token' => env('META_ACCESS_TOKEN'),
        'version' => env('META_API_VERSION', 'v23.0'),

        'mcp' => [
            'enabled' => (bool) env('META_USE_MCP', true),
            'token' => env('META_MCP_TOKEN'),
            'endpoint' => env('META_MCP_ENDPOINT', 'https://mcp.facebook.com/ads'),
        ],
    ],

];